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12 terms

ch 6 vocab

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principal root
The nonnegative square root of a number.
radicand
The number or expression inside a radical symbol
index
a number or ratio (a value on a scale of measurement) derived from a series of observed facts
simplest form
A fraction that has only 1 has a common fractor of the numerator and denominator.
rationalize the denominator
when an expression is rewritten so that there are no radicals in any denominator and no denominators in any radicals
like radicals
radicals that have the same radicand
radical equation
equation that contains radicals with variables in the radicand
square root equation
y = √(x), y = ±√(x)
inverse relation
a set of ordered pairs obtained by switching the coordinates in a relation
inverse functions
When f(g(x)) = x, and g(f(x) = x .
radical functions
a function which contains a variable as the radicand
square root functions
f(x)= √x
Constant second differences between x-values for for evenly spaces y-values.